<!DOCTYPE html>
<html>
  <head>
    <title>测试摄像头调用</title>
  </head>
  <body>
    <div id="mainDiv">
      <p>展示当前摄像头捕捉画面</p>
      <video autoplay></video>
      <script src="./js/getUserMedia.js"></script>
    </div>
  </body>
</html>